Speciation in the genera Anthericum and Chlorophytum (Asparagaceae) in Ethiopia-a molecular phylogenetic approach Author Bjorå, Charlotte S. Natural History Museum, University of Oslo, P. O. Box 1172 Blindern, NO- 0318 Oslo, Norway Author Elden, Marte Department of Biosciences, University of Oslo, P. O. Box 1066 Blindern, NO- 0316 Oslo, Norway Author Nordal, Inger Department of Biosciences, University of Oslo, P. O. Box 1066 Blindern, NO- 0316 Oslo, Norway Author Brysting, Anne K. Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, P. O. Box 1066 Blindern, NO- 0316 Oslo, Norway Author Awas, Tesfaye Institute of Biodiversity Conservation, P. O. Box 30726, Addis Ababa, Ethiopia Author Demissew, Sebsebe National Herbarium, College of Natural Sciences, University of Addis Ababa, P. O. Box 3434, Addis Ababa, Ethiopia Author Bendiksby, Mika Natural History Museum, University of Oslo, P. O. Box 1172 Blindern, NO- 0318 Oslo, Norway & NTNU University Museum, Norwegian University of Science and Technology, 7491 Trondheim, Norway text Phytotaxa 2017 2017-02-27 297 2 139 156 http://dx.doi.org/10.11646/phytotaxa.297.2.2 journal article 10.11646/phytotaxa.297.2.2 1179-3163 13693697 Chlorophytum mamillatum Elden & Nordal , sp. nov . ( Fig. 5 ) Species nova C. gallabatensi affinis, sed eo differt tuberibus secus axem radicis non in ramis lateralibus dispositis; inflorescentiis laxis prostratis; floribus albis non viridibus; testis periclinalibus cellularum mamillatis. A species related to C. gallabatense , differing by having root tubers along the root axis, rather than on lateral branches; lax, prostrate inflorescences, not stiffly erect; white flowers, not greenish; and nipple-like projections on the periclinal seed cell walls. Type: — ETHIOPIA . Bale floristic region: 10 km N of Dolo Menna (Masslo) on the road to Goba , 6º25’ N 39º44’E , 1500 m of elevation, 25 October 1984 , I . Friis, M . G . Gilbert & K . Vollesen 3459 ( holotype ETH !; isotype K !) . Perennial with short rhizome, roots ca. 2 mm in diameter, with distal tubers, 20–40 × 5–10 mm . Leaves rosulate, strapshaped, 150–600 × 15–30 mm , glabrous with narrow hyaline margin. Inflorescence paniculiform, length (including peduncle) 250–500 mm with 2–7 branches. Bract supporting branches up to 12 mm long, usually shorter; bracts supporting flower nodes up to 3 mm long, with dark brown margin. Number of flowers per node 1–3(4). Pedicel length 3–5(–7) mm, with a joint disposed from the middle to upper part, slightly papillose below the joint (at least in fresh material). Flowers star-shaped, white with greenish apex; tepals free, lanceolate, 4–5 × 1.5–2 mm ; filaments filiform, 2–3 mm long, slightly papillose, white; anthers 1–2 mm long, yellow; style 4–5 mm long, bent with a minute stigma. Capsule triangular in cross section, papillose, ca. 4 × 6 mm ; seeds 3 or 4 per locule, diameter 2 mm , flat and irregularly folded, periclinal walls of epidermal cells conical and outdrawn to a distinct papilla ( Fig. 4 ). Distribution: — The Bale and Harerge floristic regions, Ethiopia ( Fig. 2B ). Additional specimen examined: — ETHIOPIA . Bale floristic region: 10 km N of Dolo Menna ( Masslo ) on the road to Goba , 06°25’ N , 39°44’ E , 1500 m elevation, 25 October 1984 , I . Friis , M . G . Gilbert & K . Vollesen 3459 ( ETH , K ) ; Harenna Forest , 14 km on Dello Mena–Goba road, 06°27’ N , 39°44’ E , 1560 m elevation, 11 June 1986 , M . Tadesse 4671 ( ETH ) ; Dello Awraja in Harenna forest, ca. 2.2 km from turn-off from Shisha River , ca. 20 km on Dello Mena–Goba road, 06°29’ N , 39°452’ E, 1530 m elevation, 13 August 1986 , M . Tadesse 5291 ( ETH ) ; Harenna Forest near Yadot River , 1625 m elevation, 2 May 1990 , L . Nogatu and M . Tadesse 9076 ( ETH ) ; Welmel River , Fenkel Kebale , 06°26.576’ N , 39°39.153’ E , ca. 1500 m elevation, 15 December 2007 , M . Elden, I . Nordal, T . Awas & S . Demissew 9 ( ETH , O ). Harerge floristic region: near Graua 9°08’ N 41°55’E , 1750–1900 m elevation, 9 August 1975 , M . G . Gilbert 4019 ( K ) ; Harar – Jijiga road, 13 km , 1550 m elevation, 17 August 1975 , M . G . Gilbert & M . Thulin 41 ( K ) ; Uadendeo Plateau , 36 km ESE of Harar on the road to Jijiga , 9°04’ N , 42°23’ E , 1520 m elevation, 17 August 1972 , W . Burger 2074 ( K ) ; East of Gara Gora , 9°00’ N , 42°18’ E , 1220–1340 m elevation, 28 July 1963 , W . Burger 3050 ( K ) .